基于扩展OTSM图的滑动型散射中心建模方法

胡杰民; 陈锡清; 邹博; 蔡伟柯

doi:10.11999/JEIT220838

基于扩展OTSM图的滑动型散射中心建模方法

doi: 10.11999/JEIT220838

1.
浙江理工大学杭州 300162
2.
陆航学院北京 101121
3.
国防科学技术大学陆军航空兵研究所长沙 410073

基金项目: 国防科技重点实验室基金(WDZC20205500208)

详细信息

作者简介:
胡杰民：男，教授，主要研究方向为雷达成像、雷达信号处理、雷达目标特性分析等

陈锡清：男，硕士生，主要研究方向为雷达目标特性分析

邹博：男，高级工程师，主要研究方向为陆航信息化、航电系统、目标特性建模等

蔡伟柯：男，高级工程师，主要研究方向为遥感信息处理、SAR图像解译等

通讯作者:
陈锡清　370401482@qq.com

中图分类号: TN95
计量
- 文章访问数: 362
- HTML全文浏览量: 232
- PDF下载量: 73
- 被引次数: 0
出版历程
- 收稿日期: 2022-06-23
- 修回日期: 2022-11-14
- 网络出版日期: 2022-11-16
- 刊出日期: 2023-08-21

Modeling Method of Sliding Scattering Center Based on Extended OTSM Graph

1.
Zhejiang Sci-Tech University, Hangzhou 30016, China
2.
Institute of land aviation, Beijing 101121, China
3.
National University of Defense Technology, Changsha 410073, China

Funds: Key Laboratory of National Defense Science and Technology Fundation (WDZC20205500208)

摘要

摘要: 雷达目标散射中心建模是雷达目标特性分析与雷达目标识别中的关键步骤，光滑流线型结构在雷达目标上的广泛应用，给传统散射中心建模带来了巨大挑战。该文针对滑动散射中心建模开展研究，首先分别基于曲面边缘散射和曲面散射两种情况，推导了滑动散射中心的位置表达式；其次，提出一种基于扩展1维-高维(2维/3维)散射映射图(One–Two/Three Dimensional Scattering Mapping, OTSM)的滑动散射中心估计方法，通过相邻视角的投影几何关系推导滑动散射中心的位置；然后，综合RANSAC算法获取的固定散射中心，获得目标完备的散射中心模型。利用暗室测量数据对算法进行了验证，结果表明了该文算法的有效性。
- 滑动散射中心 /
- 扩展OTSM图 /
- 散射中心建模 /
- 特征提取
Abstract: Modeling of radar target scattering center is a key step in radar target characteristic analysis and radar target recognition. The wide application of smooth streamlined structure to radar target brings great challenges to traditional scattering center modeling. This paper focuses on the modeling of the sliding scattering center. Firstly, the position expression of the sliding scattering center is deduced based on the two cases of surface edge scattering and surface scattering respectively. Secondly, a sliding scattering center estimation method based on extended OTSM map is proposed. The location of the sliding scattering center is derived from the projection geometry of adjacent perspectives. Then, combined with the fixed scattering centers obtained by RANSAC algorithm, the complete scattering center model of the target is obtained. The algorithm is verified by the experiment results of the anechoic chamber data, which demonstrate the effectiveness of the proposed method.
- Sliding Scattering Centers(SSC) /
- Extension OTSM map /
- Scattering centers modeling /
- Feature extraction

HTML全文

图 1 典型滑动散射中心结构

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图 2 固定散射中心OTSM图

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图 3 滑动散射中心的扩展OTSM图

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图 4 不同视角下的投影直线

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图 5 雷达目标散射中心建模流程图

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图 6 暗室目标实物图

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图 7 原始数据的高分辨距离像

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图 8 全姿态1D SC距离像

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图 9 曲面型滑动散射中心拟合结果

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图 10 散射中心模型比较

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图 11 原始数据与重构数据比较

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图 12 原始数据的采样场景图

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图 13 原始数据的高分辨距离

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图 14 全姿态1D SC距离像图

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图 15 曲线型滑动散射中心位置分布

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图 16 锥台体散射中心模型比较

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图 17 原始数据与重构数据比较

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参考文献(22)

[1]	KELLER J B. Geometrical theory of diffraction[J]. Journal of the Optical Society of America, 1962, 52(2): 116–130. doi: 10.1364/JOSA.52.000116
[2]	GHASEMI M and SHEIKHI A. Joint scattering center enumeration and parameter estimation in GTD model[J]. IEEE Transactions on Antennas and Propagation, 2020, 68(6): 4786–4798. doi: 10.1109/TAP.2020.2975197
[3]	ZHOU Jianxiong, SHI Zhiguang, CHENG Xiao, et al. Automatic target recognition of SAR images based on global scattering center model[J]. IEEE Transactions on Geoscience and Remote Sensing, 2011, 49(10): 3713–3729. doi: 10.1109/TGRS.2011.2162526
[4]	HUMMEL R. Model-based ATR using synthetic aperture radar[C]. Proceedings of the IEEE 2000 International Radar Conference, Alexandria, USA, 2000: 856–861.
[5]	QU Quanyou, GUO Kunyi, and SHENG Xinqing. An accurate bistatic scattering center model for extended cone-shaped targets[J]. IEEE Transactions on Antennas and Propagation, 2014, 62(10): 5209–5218. doi: 10.1109/TAP.2014.2342761
[6]	QU Quanyou, GUO Kunyi, and SHENG Xinqing. Scattering centers induced by creeping waves on streamlined cone-shaped targets in bistatic mode[J]. IEEE Antennas and Wireless Propagation Letters, 2015, 14: 462–465. doi: 10.1109/LAWP.2014.2367510
[7]	LI Qifeng, GUO Kunyi, SHENG Xinqing, et al. High precise scattering centers models for cone-shaped targets based on induced currents[J]. International Journal of Antennas and Propagation, 2017, 2017: 7482895. doi: 10.1155/2017/7482895
[8]	马梁, 刘进, 王涛, 等. 旋转对称目标滑动型散射中心的微Doppler特性[J]. 中国科学:信息科学, 2011, 54(9): 1961. doi: 10.1007/s11432-011-4254-3 MA Liang, LIU Jin, WANG Tao, et al. Micro-Doppler characteristics of sliding-type scattering center on rotationally symmetric target[J]. Science China Information Sciences, 2011, 54(9): 1961. doi: 10.1007/s11432-011-4254-3
[9]	LIU Yuling, WEI Xizhang, PENG Bo, et al. Dimensions estimation for cone-cylinder target based on sliding-type scatterers analysis[J]. Journal of Systems Engineering and Electronics, 2017, 28(1): 10–18. doi: 10.21629/JSEE.2017.01.02
[10]	GUO Kunyi, LI Qifeng, SHENG Xinqing, et al. Sliding scattering center model for extended streamlined targets[J]. Progress in Electromagnetics Research, 2013, 139: 499–516. doi: 10.2528/PIER13032111
[11]	袁文杰, 郭琨毅, 盛新庆, 等. 基于电流相位特性的滑动散射中心建模方法[J]. 系统工程与电子技术, 2022, 44(6): 1765–1771. YUAN Wenjie, GUO Kunyi, SHENG Xinqing, et al. Modeling method of sliding scattering center based on current phase characteristics[J]. Systems Engineering and Electronics, 2022, 44(6): 1765–1771.
[12]	XIAO Guangliang, GUO Kunyi, WU Biyi, et al. Accurate scattering centers modeling for complex conducting targets based on induced currents[J]. Science China Information Sciences, 2021, 64(2): 129303. doi: 10.1007/s11432-019-2746-4
[13]	GUO Kunyi, QU Quanyou, and SHENG Xinqing. Geometry reconstruction based on attributes of scattering centers by using time-frequency representations[J]. IEEE Transactions on Antennas and Propagation, 2016, 64(2): 708–720. doi: 10.1109/TAP.2015.2511779
[14]	郭琨毅, 牛童瑶, 盛新庆. 散射中心属性对单脉冲雷达测角的影响研究[J]. 电子与信息学报, 2017, 39(9): 2238–2244. doi: 10.11999/JEIT161223 GUO Kunyi, NIU Tongyao, and SHENG Xinqing. Influence of multiple scattering centers with various attributes on radar angular measurements[J]. Journal of Electronics &Information Technology, 2017, 39(9): 2238–2244. doi: 10.11999/JEIT161223
[15]	徐志明, 艾小锋, 刘晓斌, 等. 基于散射中心滑动特性的双基地雷达锥体目标微动特征提取方法[J]. 电子学报, 2021, 49(3): 461–469. doi: 10.12263/DZXB.20191261 XU Zhiming, AI Xiaofeng, LIU Xiaobin, et al. Micro-motion feature extraction of bistatic radar cone-shaped targets based on characteristic analysis of sliding scattering centers[J]. Acta Electronica Sinica, 2021, 49(3): 461–469. doi: 10.12263/DZXB.20191261
[16]	ZHOU Jianxiong, ZHAO Hongzhong, SHI Zhiguang, et al. Global scattering center model extraction of radar targets based on wideband measurements[J]. IEEE Transactions on Antennas and Propagation, 2008, 56(7): 2051–2060. doi: 10.1109/TAP.2008.924698
[17]	WANG Jing and ZHOU Jianjiang. Modified MEMP method for 2D scattering center measurement based on GTD model[C]. Proceedings of 2018 International Conference on Microwave and Millimeter Wave Technology, Nanjing, China, 2008: 987–990.
[18]	陈建, 王树勋. 基于MEMP算法的二维DOA估计[J]. 系统工程与电子技术, 2007, 29(5): 703–706. doi: 10.3321/j.issn:1001-506X.2007.05.009 CHEN Jian and WANG Shuxun. Two-dimensional DOA estimation based on MEMP algorithm[J]. Systems Engineering and Electronics, 2007, 29(5): 703–706. doi: 10.3321/j.issn:1001-506X.2007.05.009
[19]	ZHANG Hongming and ZHANG Haoyu. Research on DOA estimation method of sonar radar target based on MUSIC algorithm[J]. Journal of Physics:Conference Series, 2019, 1176(3): 032001. doi: 10.1088/1742-6596/1176/3/032001
[20]	LIU Donghe, ZHAO Yongbo, CAO Chenghu, et al. A novel reduced-dimensional beamspace unitary ESPRIT algorithm for monostatic MIMO radar[J]. Digital Signal Processing, 2021, 114: 103027. doi: 10.1016/j.dsp.2021.103027
[21]	HU Jiemin, WANG Wei, ZHAI Qinglin, et al. Global scattering center extraction for radar targets using a modified RANSAC method[J]. IEEE Transactions on Antennas and Propagation, 2016, 64(8): 3573–3586. doi: 10.1109/TAP.2016.2574880
[22]	李英俊, 刘永祥, 田彪, 等. 基于IRLS的跳频模式下GTD散射参数提取和RCS重构[J/OL]. 系统工程与电子技术, http://kns.cnki.net/kcms/detail/11.2422.TN.20211027.1822.010.html, 2021. LI Yingjun, LIU Yongxiang, TIAN Biao, et al. GTD scattering parameter extraction and RCS reconstruction in frequency hopping mode based on IRLS[J/OL]. Systems Engineering and Electronics, http://kns.cnki.net/kcms/detail/11.2422.TN.20211027.1822.010.html, 2021.